| Acronym | Definition |
|---|
| DDTC➣Directorate of Defense Trade Controls |
| DDTC➣Dauphin Dog Training Club (Harrisburg, PA) |
| DDTC➣Dandie Dinmont Terrier Club (dog breed club; est. 1875; UK) |
| DDTC➣Digital Deployed Training Campus |
| DDTC➣Discrete Donut Twisted Chain (model of space and matter) |
| DDTC➣Dayton Dog Training Club |
| DDTC➣Datalink Delivery of Taxi Clearance (aviation) |